Update OS/bash/Week2/answers.md

OS/bash/Week2/answers.md

@@ -1,24 +1,41 @@
 ## OS Lab - Week2
 
-Q2. 
+Q2. (* finds all the files in the folder with exactly two characters)
-	- `grep -E '^..$' *` (finds all the files in the folder with exactly two characters)
+```bash
-	- `grep '^[A-Z]' *`
+	grep -E '^..$' * 
-	- `grep '\.$' *`
+	grep '^[A-Z]' *
-	- `grep ' ' *`
+	grep '\.$' *
-	- `grep '[0-9]' filename > outputfile`
+	grep ' ' *
+	grep '[0-9]' filename > outputfile
+```
 
 
-Q3. 	- `grep -c "ICT" ITStudents.txt`
+Q3.
-	- `sed 's/:IT:/:Information Technology:/g' students.txt > ITStudents.txt`
+```
-	- `sed awk -F: '$1 == "1234" { avg = ($6 + $7 + $8) / 3; print avg }' students.txt`
+	grep -c "ICT" ITStudents.txt
-	- `awk 'NR==1 { print toupper($0) } NR>1 { print }' students.txt`
+	sed 's/:IT:/:Information Technology:/g' students.txt > ITStudents.txt
+	sed awk -F: '$1 == "1234" { avg = ($6 + $7 + $8) / 3; print avg }' students.txt
+	awk 'NR==1 { print toupper($0) } NR>1 { print }' students.txt
+```
 
 
-Q4.	- `grep -rl "MIT" . | xargs sed -i 's/MIT/Manipal Institute of Technology/g'`
+Q4.	
+```bash
+	grep -rl "MIT" . | xargs sed -i 's/MIT/Manipal Institute of Technology/g'
+```
+
+Q5.	
+
+```bash
+	find . -type f -name '*[0-9]*' -exec wc {} +
+```
 
 
-Q5.	- `find . -type f -name '*[0-9]*' -exec wc {} +`
+Q6. 
+```bash
+	for i in {1..5}; do wc example.txt & done
+```
 
-
+```bash
-Q6. 	- `for i in {1..5}; do wc example.txt & done`
+pkill wc
-	- `pkill wc`
+```